Text book of veterinary medicine, Volume 3 (of 5)

Chapter 285: ALOPECIA CONGENITA. CONGENITAL BALDNESS.

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Comprehensive clinical manual detailing disorders of the nervous, genitourinary, ocular, and integumentary systems in domestic animals. It begins with principles of neural control and general symptomatology, classifying motor, sensory, and psychic disturbances and methods for localizing lesions. The text describes specific conditions such as seizures, paralysis, meningitis, intracranial hemorrhage, tumors, and toxicoses, and outlines diagnostic signs and pathological causes. Later sections address urine analysis and renal disease, urinary tract inflammation and calculi, and diseases of the eye, skin, and constitutional systems, combining pathological description with clinical signs, differential diagnosis, and practical guidance for examination and interpretation.

ALOPECIA CONGENITA. CONGENITAL BALDNESS.

Cases of this kind have been met with in foals and calves, which were born entirely bald or with only a few thin delicate hairs scattered over the surface. In a calf observed by the author, and which lived for several months, the body was almost absolutely bald, and the mouth remained edentulous, a coincidence which has been observed in other cases. The teeth belong to the same class of embryonic tissues as the epidermis, and a failure in the development of the one is likely to entail a corresponding failure of the other. Schneidemühl observed that the few hairs present in such cases were especially delicate and brittle.